Both Rangers and Hibs have vowed to punish fans who fought on the pitch.

But the Ibrox hierarchy blame the support of their Easter Road rivals for sparking the violence. Hampden Park Ltd were unavailable for comment.

The SFA said: “Identifying hospitality guests who left their seats and went on to the pitch will form part of the investigation.”

Meanwhile, it has emerged that only one fan was held in custody over the weekend after the riot – and he hadn’t been on the pitch.

A number of supporters were detained when fighting broke out between rival fans on the pitch but most were released immediately or after a night in the cells. The only man held until Monday was arrested for breaching a football banning order by trying to get into the game.

Michael Ryan 35, pled guilty when he appeared from custody at Glasgow Sheriff Court on Monday.

He admitted attempting to get into Hampden Park while drunk and breaching a football banning order granted on April 7, 2014, at the same court. Everyone else detained last Saturday was released from custody before Monday morning to appear in court at a later date.